Blower for boilers.



J. C. BENNETT.

BLOWER FOR BOILERS.

APPLICATION FILED OCT. 28, 1914.

Patented May 18, 1915.

3 SHEETSSHEET l.

Ala/M J. C. BENNETT.

BLOWER FOR BOILERS.

APPUCATION FILED OCT. 28, 1914.

1,139,630., Patented May 18, 1915.

3 SHEETS-SHEET 2.

James (Bennett wiwoow A aim/li V 1 62M 01 mt W w J. C. BENNETT.

BLOWER FOR BOILERS.

APPLICATION FILED OCT. 28. 1914.

Patented May 18, 1915.

3 SHEETS-SHEET 3.

Figf) James CBennett wwweoom Jams c snmrzr, or nnrnommmmem. 1

LoWm'FOB BQiiQMiSQ 1 To all whom it may concern l Be it known that I, JAMES C. BENNETT, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Blowers-for Boilers, of which the following is a specification, reference being had therein to the accompanying drawings, 2 j v This invention relates to blowers for boilers and has for its object to provide a blower that can be advantageously used in connection with a boiler of the water tube type. The drawings illustrate a blower especially, designed for the well known type of Wicks boiler, wherein a plurality of s paced vertically extending tubes are. mounted in the path of travel of gases and other products of combustion; As the tubes are located within the path of travelflof products of combustion, the outer surfaceslof the tubes I quickly collect soot particles carried by; such orincrustations upon the tubes-of a vertip'roduct, thereby preventing the maximum a-p lication of heat to the-tubes. 1 I I o preventv the accumulationof soot, scale cal boiler, I have devised a reciprocal, ro-

' tary and oscillatory apparatus that; can be accumulate! thereon.

installed without materially. altering the construction of a boiler of. the verticaltype. The apparatus embodies a reciprocal {steam injecting member, a rotary injector head, and oscillatory ejectors or nozzles. The reciprocal steam injecting member permits of the steam ejectors or nozzles being projected into the combustion chamber of afboiler for cleaning the chamber and the fiues, and retracting the same therefrom so as to clear the chamber in order to prevent the e ectors or nozzles from being burned. v 1 The rotary injector head of the apparatus permits of thesteam ejectors ornozzles being whirled or revolved in the combustion chamber ot'the boiler-to insurean e ual distribution of steam and a thorough c eansing of the tubes or flues; This is further. enhanced by the oscillatory movement of the steam-ejectors or nozzles, such movement. producing radial fan shapedisteam-jets that impinge the tubes or fiues w1th. such force or pressure as to remove allsoot particles that In. the general make up of my blower, the partsare constructed with at viewof reduc ing the cost of manufacture and at the same time retain features" by. which, ,safety, dur;

I Specification of Letters ream Application filed October as, an. seri l No. 868,925.

Patented; Ma 18,1915;

ability,fsimplicity and ease of assembling are secured, and with such ends in view, my inventlon resides in the novel construction,

combination and arrangement of parts to be.

hereinafter specifically described and then claimed; this specification being alfdirected more particularly to the preferred; formof construction illustrated by, the drawings, Whe em--i;

'Flgure 1 1s a side elevation of the blower attached to a boiler setting and partly brokenaway and partly insection showing the reciprocal steam injecting member in a retracted position; Fi 2'is a lan of a ortion of'the blowerilhi strating a locking deber; Fig. 3-'is a view of the inner end of the blower; Fig. 4-is a side elevation of a gel-tron of the blower, illustrating a modied form ofplocking means for the'recipro cal steam in ecting member; Fig; 5'-is aver rice for the reciprocalsteaminjecting memtical sectional view of a portion of the'verti'cal boiler illustrating diagrammatically the preferable arrangement of my improved,

blowers relative 'to 'the'tubes or fluesi of the boiler; F1 :6 1s ahorizont'a'l sectional View taken'ont e line VIVI of Fig,- Fig 7 is a. frontelevation' of a door frame adapted to form partof the boiler setting; Fig. 8 is itCI'OSS-SBCtlOl'lfilv VleWI10fthe same; Fig; 9

is an enlarged perspective view of a portion 7 of the rotary injector head, illustrating by dotted lines an adjusted position of the osc llatory steam ejectors'or nozzles;vFig. 10 1S}! perspective view of disassembled parts of the injector head; Fig, 11 is a diagrams matic VIEW illustrating various positions of the rotary injector headand the oscillatory steam injectors or nozzlesthereof; and Fig.

12- is an elevation of a detached door or shutter, a.

Asian instance of the installation, pard i ticularly the location, of my blowers rela-' tive to a boiler of the vertical type, there is illustrated [in Figs. 5 and 6 a chamber "1 containing fiues 2 and the wa1ls 3 of thechamber or the boiler setting are provided witha 'lurality of openings or doorways 4 into w ich' theblowers can be projected for subjecting the fines .or tubes' 2 to blasts or jets of steam,

vertically extending tubes. or; ,r

As shown, a plurality ofthe openings or doorways 4 are radially disposed in a horizontal pane whereby a battery ofz blowers can; be' loeated in proximity to'the upper s ttawa estas?s eare in gs ml diametrically disposed contiguous .to the lower end'of thetubesaor'flues. Thls" v arrangement preferable for a boiler of g "In each openingzor d the Wicks ty e, butcan be modified .for

various typeso boilers. a

oorwaye there s mounted a" door frame. 5 and bolted or otherwiseconnected to said frame, as at 6 is a lining infer the walls of the opening or doorway 4. This lining is of metal and is made-"detachable in order that the frame 5 can ,be usedjin. connection with boiler set- Y iting's'or walls ofvarious thieknesses,v it

only being necessary to use a hnmg of suff cient. lenh to approximately extend Itlfie frame, 5 has diametncallyfoppose socket length 0 an opemn or: doorwa members 8 or anchoring bolts or tie rods (not shown) employed for seourin the-frame 5 to the boiler setting or wall 3. he lower edge of the frame 5 has an aperturedlug 9 and pivotally connected thereto Isa slide door or shutter 1O- provided with a handle or knob 1-1." The door or shutter-10, ina' closed posi tion,.i.eng'agesfa' slottedrest or keeper 12 forming partof'the loweredge of the, frame 5, and the door or shutter is closed during the, peration of 'thetbo'iler, and when vthe blower is not inyuse. v-

The upper edge of the frame 5 has an ex f te'nsion13 supportinganioutwardly extendi'ng casing 14, :which has a steam: connection 15. The outer end-of the casing 14, is prosided-with a tubular-telescopic member 16 and mounted' npon thexouter' end .of said I member is a] stufiing (box 17, The stuifing a box 17gh'as the up ersidethe'reof PDOYIdQd with a boss'18 an a; staple ,19.- Connected to the s'taple-lQis a han er '20", preferably in the form of a turn buck e,-and'sa1d-hanger is; connected-"to a staple :21 secured to-the I boiler setting or wall 3above the: opening or doorway-4 thereof. The turn buckle 20. permits ofjthe outer end of .the'telescopic'pemher .16. being adjusted whereby the casmg 14 and-saidfmember can-be 'malntamed in a 1' horizontal plane at rightangles'to the boiler setting 0r'wall3 v The stuffing box 17 :is of the conventional form containing packing-22j-andja gland-23,

andsIidable through stud stuflin box into the telescopic member. 16 is the tu e or ipe 1- which. has

' U,.or, return..connecti on-26; 'rovide'd' with aj 24 of afreci grocal steam injecting'mem er, een enerallydesignated 25; The outer end of the tube or pipe 24 has-a short tube'or pip'e127; a'n'el owv28, andanother short tubef-or pipe '29 supportinga combined -stuflin' box and housing directly 1 beneath tie, telescoping elementsv or the reciprocalmembcr 25l,1f v v fl-he housing 30 longitudinally-alines with the openingor doorwa ,4 and the 'inner end thereof isproyided wit an interip'rannul-ar gland ea surrounds the tubular ,member of a rotary injector head 36. The outer end 79 f cured to the peripheral-ilangeez a land: 33 retaining ticking-34; against the an 31, and said ange, the packing 34 and "t e;

of. the member '35, within the bolls [30; has a collar 37,to'abutthe flange 31 o the "housing and mounted upon the tubular member 35 is a sprocket wheel 38, which during its rotation. in the housing this chain that the hcad '36 is whirled or revolved, either manually or fromasuitable f .source of powerm 'COIIIIQCtlOH" witl'rthe s rocket 'ch'ain"39"or directly 'connected'to .t e jwheel"38 or asimilar transmission mountedju on thejmeniber 35. I The' hea 36' i's hollow and radiallv dis ,posedjrelative to"the inemberf35, Altith e outer end of the head 36 are oppositel "dis adjustably mounted relative toj theconnec; tions40 are elbow nozzles or ejectorconnecposed elbow connectionsjfiQ and swi've; ed or tions 41 having nozzles orejectors-42. The

nozz1es'orej'ectors42 are oscillatory relative i to the connections 40'and one ofsald nozzles or ejectors' is curved, for-apurposethat will, hereinafter appea'inj, :The" nozzles or ejectors are adapted'to be oscillated in-vunisonand move toand from each other to dis; semmate steam .durmg the rotarymovement ofthe head 36. l

Tooscillate' or adjust I tors 4:2- during-a rotation of'the head 36',"-

provisi'on' is made-whereby the same can he T accomplished at the outer-end of the hous mg 30 when the 'ejectors or nozzles are projected into the opening'or doorway- An 'operatmrod 43 extends: longitudinally of the tubu ar member 35 andthe outer-end of said rod is in screwthreadedengagement, "as 1 at 44 with ah'e'a'd 45 closing the outerend of f the housing 30. The-outer "endof the-rod 43 has a conventional form-[of hand wheel or crank 46 whereb .saidrod can beqadjusted Y q longitudinally o the memberQ8f5, and the inner end of the rod" 43. protrudesfrom the head '36 and is reduced'tozform a stemj47; I

This-stem is loosely held-in engagement with an arrnfit's carried by a cross head 49. The crosshead 49 has the end thereof connected by pins or-bolts IiOto links 51 and.

id links-are connectedto pins or studs 52 carried by'the steam eject'o'rs or nozzles'22, 1 The inward mo'vemento'f the .r'od43'is limited by the hand wheel' lfi enga 'ng a;

between said ro'dlan the ejectors'or nozzles 42 1s snchf that. the nozzles are in pa'ral the nozzles'or ejec ca 53 ofla honsi-ng'hcad'45 .a'nd wit Jsaid ro initsmnermost osition,-the connections 'igieaea'o I ward movement of the rod 43 spreads the nozzles 42 and through the medium -.of the offset head 36 and=the looseconnection with the -1od47 the steam ejeetors or no'zzles can 5 bendjus'ted to-a desired inclination relative to the head 36 during a rotary movement of the'member35. v 'Aswsh'own in Fig. '1, the rotaryinjector head'ddisnorma'lly in proximity to the door or shutter 10 and with' the'door or shutter open, the head 36 can be rojected into the opening or doorway 4 w ereby'the steam 'ejeotors or nozzles 42 can discharge steam throughout thechamber l. To'facilitate reciprocatin-g the member 25, the outcr-endof the connection 26 is prov ded with a suitable handle 74 and to lock the member '25 in an adcjusted position, a lockin bar 55 is employs. This bar is fixed a oss 56 of the connection 26 and extends through the boss 18 of the stufiin' box 17; The locking bar 55 is in paralle ism with the tube or pipe '24 and is provided with openings 57 to receive a .pin 58. With the pin engaging the boss l8 it' is impossible for'steam, under pressure in the casing 14 or the telescopic member. 16 to displace "the member relative to the stufiinghox 17. In lieu of the pin 28, "the upper side ofthe locking-bar 55 30 "can =be notched, as indicated at 59 in Fig. t and'the boss 18 provided with a gravity dog or pawl 60 to on age in the notches of the locking bar. Suc a lock will automatically secure the reciprocal steam injecting mem- 85 ber'25 in-a projected position and it is only necessaryto elevate the dog)or pawl 60 when it is desired to retract the lower. 1 In operation, it is only necessary. to place the member 25 in a pro ected position, turn 4Q on the steam or agent employed for removing soot and other foreign matter from the chamber 1 and the tubes or fiues- 2 thereof,

revolve the member 35, and adjust the rod 43 in said member. By revolving the mem 45 her 35 through the medium'of the-chain 39 and intermittently adjusting the rod 43 the ejectors or nozzles 42 are oscillated and throughout the operation of the blower the outlet ends of the ejectors-or nozzlesassume the various positionsshown in Fig. 11, consequently blasts or jets are produced. within the chamber 1, as indicated by dotted lines in Fig.5 of the drawings. 1

I attach considerable importance to the fact that the steam ejectorsor nozzles can be oscillated as the injector headis revolved,

and it is by this action that steam is projected against the tubes or flues to thoroughly remove soot and incrustations from the same. By oscillating or adjusting the nozzles or ejectors, the striking area of the steam can be increased and decreased. and in using the term striking area I allude to thatarea of blasts or jets denoted by. 66 dotted lines in Fig. 5, which inctudcs such space wherein steam is effective for removing soot and incrustations. I am aware of; single nozzlesthatcan beswung around in s a chamber 'to discharge steam "in various directions, but in the present instance there T70- structural elements are susceptible to such can changes, as in the size, shape and manner of assemblage, as fall within the scope of the appended claims. w

.What Iiclaim is i 1 A 1. an a blower, aa 'reciprocal stcamine!) jector member, a rotary injector head 'car- Tied thcrebygand oscillatory nozzles carried by said 'headand capable of be'mg swun'gto and from each other.

,2. In'a blowena reciprocal steam inject ing member, a rotary injector head carried thereby, oscillatory nozzles'ca'rried by said head and capable of being swung to and *from each other, and means for revolving said head.

In a blower, a reciprocal steam injecting member, a rotary injector head carried thereby, oscillatory nozzles carried by said head and capable of being swung to and from each other, and meansforoscillating1105 said nozzles simultaneous with the rotary movement of said head. a I I 4. In a blower, a rotary head, oscillatory nozzles carried thereby and capable ofbeing swung to and fromeach other, and means no extending through said head adapted .to oscillate said nozzlessimultaneous'with the rotary movement of said head. I

5. A fuel economizing apparatus including an inclosed water circulating structure 1715 located in the pathoof travel of products of combustion, a rotary head adapted to'be projected into said structure, and oscillatory nozzles carried by :saidhead and capable of being swung to and; from each other and adapted to be oscillated during a rotary movement of said head. 4

6. A fuel economizing apparatus including an inclosed water circulating structure located in the path of travel of products of I I combustion, an injector head adapted to be projected into said structure, op osing nozalso carried thereby a-nd'ada te to receive steam through said head, an means for ad justing said nozzle from the =exteriorof said 330 to be oscillated to and from each other in unison.

19. An injector for steam blowers comprising a. revoluble head, oscillatorynozzles on said-head, and means extending through said head for simultaneously adjusting said nozzles to andfrom each other to increase and decrease the striking area of steam ejected by said nozzles.

20. An injector for steam blowers comprising a rotary steam injecting head, and distensible and retractible opposing means on said head for increasing and decreasing the striking area of steam injected thereby.

21. The combination with a boiler setting, of a battery of blowers carried thereby, and each including a steam injecting head movable into and out of said boiler setting, and distensible and retractible opposing means operatable interiorly of said boiler setting for increasing and decreasing the striking area or" steam injected by said head.

22. The combination of a boiler setting of the vertical type, of a battery of blowers carried thereby and each including a-steam injecting head movable into and out of said boiler setting, and opposing nozzles on said head adapted to be oscillated after entering carried thereby and each including oppos ing distensible and retractible nozzles, and means operatable exteriorly of said boiler setting for oscillating said nozzles after entering said setting to increase and decrease the striking area of steam injected thereby. 24. The combination with a boiler setting of the vertical type, of a battery of blowers carried thereby each including a revoluble steam injecting head movable into and out of said boiler setting, oscillatory opposing nozzles carried by each head, and means operatable exteriorly of said boiler setting for simultaneously revolving said head and distending and retracting the nozzles carried thereby. In testimony whereof I affix my signature in presence of two witnesses.

JAMES c. BENNETT.

Witnesses:

ANNA M. Dorm, KARL H. BUTLER. 

